Improvement in attaching roses for knobs to doors



@dimitri zuet (aient @Mire LORENZO P. WATERMAN AND CHARLES H. PORTER, Oh BltlDGElOlt'l, CONNECTICUT, ASSIGNORS T0 THEMSELVES AND JAMES M. HUNT, 0FV SAME PLACE.

Letters Patent No. 90,209, dated May 18, 1869.

INIPROVEMENT IN ATTACHING- ROSES FOR' KNQBS TO DOORS.

The Schedule tejen-ed to in these Letters Patent and making part of the same.

To all whom t may concern.:

Be it known that we, LORENZO P. WATERMAN and CHARLES H. PORTER, both of the city of Bridgeport, in the county ot' Fairfield, and State of Connecticut,

i have invented a new and useful Improvement in the Manner of Attaching the Roses or Escutcheons of Latch-spindles to Doors, Sto.; and we do hereby declare that the following is a full, clear, land exact description of the construction, character, and operation of the same, reference being had to the accompanyingr drawings, which make part of this specification, in which- Figure 1 is a section of the parts, cut in the longitudinal direction of the spindle, showing the methods of securing the roses or escutcheons to the door by means of tubular male and female screws.

Figure 2 is a perspective view ot' one of the roses or esoutcheons, with the tubular male screw attached.

Figure 3 is a perspective view of the femalescrew.

Figure 4 is a perspective View bf a cylindical spindle, with a male screw and longitudinal slot at one end, and a feather, or spline projecting from the centlal portion.

Figure 5 is a perspective view of a tumblenor spindle-socket for a cylindrical spindle.

Our improvement consists in fitting the two roses or escutcheons to the door by means of tubular male and female screws. While one of the knobs may be periron or any other suitable material, substantially inthe form shown at a, fig. 2, and indicated at a a., fig. 1, and wemay either cast it in one piece with the rose A, or shrink the rose A on to the'tube, swt-hatthe whole will appear as represented in fig. 2, and indicated, in section, at A A, iig. 1, so that it may receive the female screw b, tig. 3, ou its outer end, as indicated, in section, at b b, tig. 1.

And we make a slot or an open space in the side of this tube, as represented at j, lig. 2, of sutiicieut size to enable the tumbler (fig. 5) to work freely with any kind of a spindle, as indicated, in section, at jj, fig. 1.

XVe make theicylindrical spindle H, iig. 4, with a feather, or spline projecting on one side, as represented at c, fig. 4, to lit the slot d in the rose A, iig. 2, and the slot e in the tumbler, (fig. 5;) and at the end we cut a male screw, as represented at j, fig. 4, on to which we screw the neck g of the knob C; and in the same end we cut a longitudinal slot, shown at hf, fig. 4, through which we pass the screw, which binds the knob C in its place, and prevents it unscrewing, or we use any other kind of spindle, and the tumbler formed in the lock. Y A

We make the tumbler, or spindle-socket of malleable cast-iron or any other suitable material, substantially in the lorln shown in fig. 5, with a slot, like e, to receive the spline c on the spindle, which form is necessary when we use a cylindrical spindle like tig. 4.

Having constructed the several parts, as before described, with the tubular male-screw shank iirmly attached to the rose or escutcheon A, as in iig. 2, and hav# ing placed the lock and latch, with the proper tumbler in thc mortise, as at D D, in the door, as E E, we insert the tubular male screw a through the door, tumbler, Sac., slip on the other rose, (on the opposite side of the door,) and turn on the female screw b, iig. 3, when the tubular male and female screws will appear as represented, in section, at b b, fig-1, with the two roses or escutcheons pressed firmly against the door, as represented, in'section, at A A and B B,.where they4 may be steadied by suitable spurs, as l l and l l, fig. 1, slight-ly penetrating the wood.

We then secure the neck m. of the knob G on to the plain end of the spindle H, figs. 4 and 1, by a pin or otherwise, and pass the spindle H through the tubular screw a, the feather c passing through the slot d, fig. 2, and into the slot e, tig. 5.

We then screw on the knob C until t-he necks g and on. of the knobs C and G are sufficiently close in the roses A A and B B, when we insert a binding-screw through the neck g of the knob C and slot h, iig. 4,

which will prevent the knob C from being unscrewed, all as represented, in section, in fig. l, when the whole will be ready for use.

Among the advantages of our improvement, we name, securing the roses or escutcheons for the knobspiudle with absolute certainty and firmness by the use of the internal tubular male and female screws, thereby obviating the necessity ot' using external screws, which so much deface the roses or escutcheons, and which are' so liable to work loose.

That we lclaim our invention, and desire to secure by Letters Patent, is-

Securiug the two roses' by means ofthe tubular screws, (tig. 2,) passing through the door and the two roses, A and B, and the end secured in the roseB by the nut b, fig. 3, substantially as herein described, and set forth in tig. l. Y y

L. P. `WATERMAN. C. H. PORTER. Witnesses:

J. M. HUNT,

R. FITZGERALD. 

